The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2011
Filed:
Dec. 24, 2004
Toshihiro Iwakuma, Sodegaura, JP;
Hisayuki Kawamura, Sodegaura, JP;
Hidetsugu Ikeda, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Hiroaki Nakamura, Sodegaura, JP;
Toshihiro Iwakuma, Sodegaura, JP;
Hisayuki Kawamura, Sodegaura, JP;
Hidetsugu Ikeda, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Hiroaki Nakamura, Sodegaura, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
Provided is a material for an organic electroluminescence device, which is composed of a compound having a specific structure; and is capable of providing an organic electroluminescence device having a high luminous efficiency, excellent heat resistance, and a long lifetime while having no pixel defects, and an organic electroluminescence device using the same. The organic electroluminescence device comprises an organic thin film layer composed of one or more layers including at least a light-emitting layer and sandwiched between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer comprises the material for an organic electroluminescence device.